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| author | Luc Van Oostenryck <luc.vanoostenryck@gmail.com> | 2018-07-08 23:59:51 +0200 |
|---|---|---|
| committer | Luc Van Oostenryck <luc.vanoostenryck@gmail.com> | 2018-07-28 09:06:47 +0200 |
| commit | bc0f5843abbc4579a277392af8db70f7835f4b97 (patch) | |
| tree | 0bccb059e42748f2b3490a49730d7fc60909fa7c /validation | |
| parent | 0df976f9a48170c617f056e61381143342d9b939 (diff) | |
| download | sparse-dev-bc0f5843abbc4579a277392af8db70f7835f4b97.tar.gz | |
simplify SET{EQ,NE}(ZEXT(x, N),{0,1})
A zero-extension has no effect on the result of a comparison with 0 or 1.
Optimize away the extension.
Note: this simplification was already done but only when the
original size was 1 but it can be done for all sizes.
Signed-off-by: Luc Van Oostenryck <luc.vanoostenryck@gmail.com>
Diffstat (limited to 'validation')
| -rw-r--r-- | validation/optim/bool-zext-test.c | 1 |
1 files changed, 0 insertions, 1 deletions
diff --git a/validation/optim/bool-zext-test.c b/validation/optim/bool-zext-test.c index f837ace2..138938b0 100644 --- a/validation/optim/bool-zext-test.c +++ b/validation/optim/bool-zext-test.c @@ -6,7 +6,6 @@ _Bool neu1(unsigned char a) { return a != 1; } /* * check-name: bool-zext-test * check-command: test-linearize -Wno-decl $file - * check-known-to-fail * * check-output-ignore * check-output-excludes: zext\\. |